I am developing a virtual tour and I would like this tour to have an external link for accessing an html.
I would like to know if this functionality can be exported in the virtual tour version Google Street View ?

To publish to street view you would of already added panos and set links.
Using the street View panel you then upload to Google.
You can now go to your panos in your account. Open the start pano of an uploaded tour and you can then get the embed code by clicking on the three dots/menu. You can now embed the Street View Tour in a page.

However using the same project file you can now add an HTML5 output and add a skin.
Create output and Pano2VR creates an "output" folder.
You can upload this to your server.

So you now have a self hosted version using a custom skin of your project.
Regards,
Hopki